Index

Regions

α

wind strength (β)

Jan

Feb

Mar

Jun

Dec

1

Beijing

1.2

1.7204

1.9412

1.9785

2.2222

1.8280

2

2.0

3

Jiayuguan

1.2

1.6774

1.9294

2.4516

2.7444

1.7849

4

2.0

5

Haikou

1.2

2.9462

2.7882

2.9892

2.7333

2.5699

6

2.0